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Texas Instruments THS6214IRHFT
- Part No.:
- THS6214IRHFT
- Manufacturer:
- Texas Instruments
- Category:
- Telecom
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
THS6214IRHFT.pdf
- Description:
- IC TELECOM INTERFACE 24VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:236
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Product details
Overview
THS6214IRHFT from Texas Instruments is a dual-port, current-feedback differential line driver amplifier optimized for VDSL2 and broadband power line communications (PLC) systems. It delivers >416 mA output current into 25-Ω loads, 43.2 VPP differential swing with ±12-V supplies, and –93 dBc HD3 distortion at 1 MHz under full bias - enabling G.993.2 Profile 8b compliance and central-office transmission up to 30 MHz.
For engineers reviewing the THS6214IRHFT datasheet, THS6214IRHFT pinout, THS6214IRHFT application, or THS6214IRHFT equivalent, this page provides verified specifications, bias-mode control logic, thermal performance data, package-specific layout guidance, and real-world VDSL2/PLC implementation context - all aligned to TI's SBOS431A production datasheet (Rev. March 2017).
Technical Context
The THS6214IRHFT implements a current-feedback architecture with independent dual ports (D1/D2 and D3/D4), each supporting programmable bias modes via BIAS-1/BIAS-2 pins (full/mid/low/shutdown). Its transimpedance gain (330–700 kΩ) and low input-referred noise (2.7 nV/√Hz voltage, 1.2 pA/√Hz noninverting current) enable high-fidelity signal integrity in high-speed xDSL line drivers.
It operates across ±5 V to ±14 V supply rails, achieves 150 MHz small-signal bandwidth at GDIFF = 10 V/V, and maintains –73 dBc HD3 at 10 MHz under full bias. PSRR exceeds 50 dB at 1 MHz, and crosstalk between ports is –90 dB at 1 MHz - critical for multi-port DSLAM and PLC node isolation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±5 V to ±14 V - supports flexible system-level rail design and backward compatibility with ADSL2+ infrastructure. |
| Output Current (DC) | ±416 mA into 25-Ω load - enables direct drive of twisted-pair lines without external boost stages. |
| Differential Output Swing | 43.2 VPP into 100-Ω differential load at ±12 V - provides wide dynamic headroom for high-line-power VDSL2 profiles (e.g., 17a, 30a). |
| HD3 Distortion | –93 dBc at 1 MHz, full bias - meets stringent MTPR requirements for G.993.2 VDSL2 Profile 8b (20.5 dBm). |
| Small-Signal Bandwidth | 150 MHz at GDIFF = 10 V/V - supports full-band VDSL2 operation up to 30 MHz with margin for filter roll-off. |
| Input Voltage Noise | 2.7 nV/√Hz - minimizes contribution to system SNR degradation in high-gain line driver configurations. |
| Quiescent Current (per port) | 21 mA (full bias), 16.2 mA (mid), 11.2 mA (low), 0.8 mA (shutdown) - enables adaptive power management per line length. |
Pinout & Package
The THS6214IRHFT is packaged in a 24-pin VQFN (RHF) with 5.00 mm × 4.00 mm body size and exposed PowerPAD™ thermal pad. The PowerPAD is electrically isolated and must be connected to GND for optimal thermal dissipation (RθJB = 11.3 °C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BIAS-1/D1D2, BIAS-2/D1D2 | Port A bias mode control inputs | Two-pin binary interface selecting full/mid/low/shutdown for amplifiers D1/D2; default shutdown if unconnected. |
| BIAS-1/D3D4, BIAS-2/D3D4 | Port B bias mode control inputs | Independent two-pin binary interface for amplifiers D3/D4 - enables asymmetric biasing across ports. |
| D1 IN+, D2 IN+, D3 IN+, D4 IN+ | Noninverting inputs | Differential input pairs accepting ±9.5 V common-mode range at ±12 V supply - compatible with transformer-coupled DSL front-ends. |
| D1 FB, D2 FB, D3 FB, D4 FB | Inverting inputs | Feedback terminals establishing closed-loop gain; inverting input resistance is 50 Ω - matches standard line impedance networks. |
| D1 OUT, D2 OUT, D3 OUT, D4 OUT | Differential outputs | High-current outputs capable of ±416 mA sourcing/sinking; output impedance is 0.2 Ω differential at 1 MHz. |
| IADJ | Bias current adjustment | Analog pin allowing fine-tuning of quiescent current below discrete bias modes - used with external resistor for continuous optimization. |
| VS+, VS− | Power supply connections | Separate ±12 V rails; dual VS+ and VS− pins per package side reduce supply path inductance and improve PSRR. |
| GND | Control ground reference | Reference for bias logic and IADJ; usable range is VS− to (VS+ − 5 V) - ensures stable operation across supply variations. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Bias Modes | Four discrete operating states (full/mid/low/shutdown) per port via BIAS-1/BIAS-2 pins - reduces total system power by up to 50% on short loops without sacrificing signal fidelity. |
| Current-Feedback Architecture | 150 MHz bandwidth and 3800 V/µs slew rate at GDIFF = 10 V/V - preserves transient response and pulse fidelity in high-speed DSL line driving. |
| Low-Distortion Differential Output | –93 dBc HD3 at 1 MHz and –70 dBc at 10 MHz (full bias) - meets G.993.2 spectral mask requirements for 17a/30a profiles. |
| Thermally Enhanced VQFN | RθJB = 11.3 °C/W with PowerPAD connected to PCB ground plane - sustains 1-W internal power dissipation in compact DSLAM modules. |
| High PSRR & Low Crosstalk | +PSRR/–PSRR > 52 dB at 1 MHz; inter-port crosstalk = –90 dB - prevents coupling between upstream/downstream channels in multi-port DSLAMs. |
Applications
| VDSL2 Line Driver | ADSL2+ Backward Compatibility |
|---|---|
|
Use Scenario: Central-office DSLAM transmitting up to 30 MHz over copper pairs using G.993.2 Profile 17a/30a. IC Role / Device Role / Timing Role: Dual-port differential line driver delivering >14.5 dBm line power with <–70 dBc MTPR. Use Value: Enables full-band VDSL2 deployment without external current boosters while maintaining thermal safety in dense line cards. |
Use Scenario: Multi-standard DSLAM supporting legacy ADSL2+ subscribers alongside new VDSL2 deployments. IC Role / Device Role / Timing Role: Programmable line driver operating at reduced bias modes to match ADSL2+ spectral and power requirements. Use Value: Single-component support for mixed subscriber base - eliminates need for separate ADSL/VDSL driver ASICs. |
| Broadband PLC Amplifier | Multi-Port Signal Distribution |
|
Use Scenario: High-voltage PLC node injecting OFDM signals onto medium-voltage power lines (CENELEC A/B/C bands). IC Role / Device Role / Timing Role: Wideband differential driver providing >43 VPP swing and >150 MHz flat gain for 1–30 MHz PLC waveforms. Use Value: Replaces discrete transistor-based amplifiers with integrated solution offering lower board area, improved matching, and repeatable distortion performance. |
Use Scenario: Test equipment or signal generator distributing synchronized differential signals to multiple DUTs. IC Role / Device Role / Timing Role: Dual-port buffer with <–90 dB inter-port crosstalk and matched propagation delay across ports. Use Value: Ensures phase coherence and amplitude tracking between parallel test paths - critical for MIMO and multi-channel calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential line driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS6222IRHFT | Single-port version with identical bias modes, noise, and distortion specs; same VQFN-24 package but only two amplifiers. | Suitable for single-line DSLAM ports or cost-sensitive designs where dual-port integration is unnecessary. | Select when only one differential channel is required - reduces component count but doubles part count for dual-line systems. |
| LMH6882EVM | Evaluation module for LMH6882 (wideband RF VGA), not a direct replacement; requires external loop compensation and lacks integrated bias control logic. | Used in lab validation of variable-gain architectures, not production line drivers. | Choose only for R&D prototyping of custom gain-controlled line drivers - not suitable for drop-in VDSL2 deployment. |
Compared with THS6214IRHFT, THS6222IRHFT offers identical per-port performance in a single-channel form factor, while LMH6882EVM serves evaluation-only use cases requiring external gain programming - neither provides the dual-port, bias-programmable, production-ready integration of THS6214IRHFT.
Availability
THS6214IRHFT is available at Aetrix Electronics and suitable for VDSL2 DSLAMs, ADSL2+ gateways, broadband PLC nodes, and multi-channel test instrumentation requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for THS6214IRHFT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in high-speed amplifier design and communications infrastructure solutions.
The THS6214IRHFT belongs to TI's high-performance line driver amplifier product line, engineered specifically for xDSL and broadband PLC applications demanding high output current, ultra-low distortion, and adaptive power management in thermally constrained environments.
FAQ
What is the maximum safe operating junction temperature for THS6214IRHFT?
The THS6214IRHFT has a maximum continuous junction temperature of 130°C for the RHF (VQFN) package. Operation above this limit may reduce reliability and lifetime. Thermal design must ensure RθJB ≤ 11.3 °C/W with PowerPAD soldered to a solid GND plane - verified in TI's SBOS431A datasheet Section 6.4.
Does THS6214IRHFT support both VDSL2 and ADSL2+ standards simultaneously?
Yes, THS6214IRHFT supports both standards: its wide bandwidth (150 MHz), high output swing (43.2 VPP), and programmable bias modes allow it to meet G.993.2 VDSL2 Profile 17a/30a requirements while operating in mid/low bias for ADSL2+ spectral efficiency. TI explicitly lists "Backwards-Compatible with ADSL, ADSL2+, ADSL2++ Systems" in the Applications section of SBOS431A.
How does the IADJ pin function in THS6214IRHFT?
The IADJ pin on THS6214IRHFT allows analog adjustment of quiescent current below the discrete bias modes (full/mid/low/shutdown). When an external resistor is connected between IADJ and VS−, it sets a precise bias current level - enabling fine-grained power/performance trade-offs beyond the four digital bias states. This feature is documented in Section 7.3 of SBOS431A.
What is the recommended layout practice for THS6214IRHFT's PowerPAD?
Texas Instruments specifies that the THS6214IRHFT's PowerPAD must be soldered to a thermally robust PCB ground plane using ≥6 thermal vias (0.3-mm diameter, spaced ≤1 mm apart) to achieve RθJB = 11.3 °C/W. The PowerPAD is electrically isolated and should not be tied to any signal net - details are provided in Section 10.2 of SBOS431A and SLMA002 application report.
Can THS6214IRHFT operate from a single supply?
No, THS6214IRHFT requires dual ±5 V to ±14 V supplies (VS+ and VS−) as confirmed in Section 6.3 (Recommended Operating Conditions) and Section 6.5 (Electrical Characteristics). Its input common-mode range and output swing are symmetric about ground, and the datasheet contains no single-supply operating conditions or circuit examples.
THS6214IRHFT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- VDSL2 Line Driver Amplifier
- Interface:
- -
- Number of Circuits:
- 2
- Voltage - Supply:
- 10V ~ 28V
- Current - Supply:
- -
- Power (Watts):
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-VQFN (5x4)
THS6214IRHFT FAQ
1.How can I place an order for THS6214IRHFT through Aetrix?
Please submit a Request for Quotation (RFQ) for THS6214IRHFT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for THS6214IRHFT reliable?
The price and inventory of THS6214IRHFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS6214IRHFT is usually 5 days.
3.What payment methods are accepted for THS6214IRHFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS6214IRHFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS6214IRHFT?
THS6214IRHFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS6214IRHFT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for THS6214IRHFT?
For technical support, including THS6214IRHFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS6214IRHFT requirements.
6.How does Aetrix verify that THS6214IRHFT is sourced from the original manufacturer or authorized distributors?
All THS6214IRHFT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that THS6214IRHFT meets industry standards.
7.What is the process for return or replacement of THS6214IRHFT?
All THS6214IRHFT units undergo pre-shipment inspection (PSI). If there is an issue with THS6214IRHFT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The THS6214IRHFT part is unused and in its original packaging.
Return procedure for THS6214IRHFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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